Knock-out panel



FIG. 1 is a perspective view of a knock-out panel;

FIG. 2 is a top view of a portion of the knock-out panel of FIG. 1;

FIG. 3 is a bottom view of a portion of the knock-out panel of FIG. 1;

FIG. 4 is a first side view of the knock-out panel of FIG. 1;

FIG. 5 is a second side view of the knock-out panel of FIG. 1;

FIG. 6 is a front view of a portion of the knock-out panel of FIG. 1;and,

FIG. 7 is a rear view of a portion of the knock-out panel of FIG. 1.

The features shown in broken lines depict environmental subject matteronly and form no part of the claimed design.

CLAIM We claim the ornamental design for a knock-out panel, as shown anddescribed.